Photographic-printing machine.



P. A. FRIEDELL. PHOTOGRAPHIC PRINTING MACHINE.

APPLICATION FILED MAR: 22, 1913. 1,168,622, Patented Jan. 18, 1916.

3 SHEETS-SHEET I.

The COLUMBIA PLANOGRAPH co., WASHINGTON, n. c.

P. A. FRIEDELL.

PHOTOGRAPHIC PRINTING MACHINE.

APPLICATION FILED MAR. 22. I913. 1,168,622 Patented Jan. 18, 1916.

3 SHEETS-SHEET 2.

WCiflESSES THE CDLUMBIA PLANOGRAPH Cm, WASHlNfi'Aun, u. L-

P. A, FB IEDELL.

PHOTOGRAPHIC PRINTING MACHINE.

APPLICATION FILE D MAR. 22, 1913,. Patented Jan. 18,

3 SHEET$SHEET 3.

IN VENTOR.

THE COLUMBIA PLANOGRAPH (20-, WASHINGTON, D. C.

Pun-.1?- A; FmnDnLL, on nnw 'Yonn MILLS, mmnnsotrn.

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pec vfi a n 1 tte s 12mm.

' 1 Patented Ja 18, 19116.

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To all'whom it may concern,

Beit known that I, PnILn? State of'Minnesota, have invented certain aImprovements in Photographie-"Printing' Machines, of which thefollowingis agspeci fication. a

' In'the accompanyin is'a front elevation of t eprinting machine,

showing the platen closed as when an ex? posure is being made; Fig. 2 isa side el'ef vation, with platen open. Fig; 8 is a sec-3 tional rearelevation, showing the leaves or shutters closed and the latch operatingmechanism, all other mechanism removed. Fig. 4' is a sectional plan ofthe bottom of the printing machine showing the mechani'sm in" position,set ready for a time ex po'sure. Fig. 5 is a sectional elevationshowingjthe transmission lever andthe beveled block which raises anddisengages this'le} ver. from the shutter actuating lever. Fig,

6 is a sectional elevation showing the power lever and a section of'theguard'and of the pivoted endof the transmission lever. Fig. is asectional elevation showlng the t mer regulating bar, exposureindicator, andftlme exposure release bar. Fig. 8 is a. sectional plan ofthe bottom'of the printing chain her, showing the/mechanism inpositioni'as hen a m posu e s e ad Fig.5? 9"is sectional sideelevation,fsh'owing the" negative holding means. Fig. 10 is a sec tionalplan ofthe bottom of the printing' machine showing the mechanism inposition" a s when "a slow' instantaneous exposure is being made, themechanism 'assum1n'g' the positlons shown by the dottedlines when theexposure is completed.-

Similar charaetersfof reference refer to similar parts throughout theseveral views.

The, e posu chambe "13 s si n (with an interchangeable negative holdersuitable size for the largest negatives tob'e Pr nted fr m, nd an pe nin' h B to admit light" from a'window' or other means f ht n to he egaiveinterchangeable negative holder is held" place and into absolutecontact 'with the" negative 100 by the springs18,pivoted at a P u g u dips 1 5 e ai'n t tra spa e p a e 9,! a i sev ed on its inner surfacelwith a resilient" material 101. Fittingintothe o enilnlg 14, in the nte2 t neg ti ehelk '6 1. s e plate 6, hinged at the bottom 28; At the top"of v I A F IEDELQ residing in the village ofNew. York Mills,

drawings, Figure; 1

The

the platen 6 is the spring 19 which I under the l'oick 20 torkeeping theplaten in a; closed position during an'exposure. At the lower part ofthe platen 6 is located the lever 21, which through the, closing of theplaten' 6, transmit-s power, to the mechanism.

for operating, the printing machine, by the red; 22, the" bell cranklever 23 pivoted at l'Q2"thence through the. 13001: 25 to the lever '7At the bottom of the platen 6ils also the spring 26 which throws thepl'aten 6 to an open' position when the lock 20 is released.

ing the size of the prints to be made.

complete interchangeable negative 7 carrier consists of the followingparts; 16,18, 19,

108, and 103. Y The lever 30 is pivoted through the printing chamber'13,at 31 to thelever 32 (Fig. 3 5 Inside of the print-:' ing "chamber backof the negative carrier are th eleaves '3" swinging with the'pivots83*pivoted 2117 34. At the top of the pivot 33 isjfjtheprojection 35 towhich the rod 37 is pivoted at;.38, theopposite end of's'aid rod 37being" pivoted to the "lever 32 at 36. At

the lower-"end of thepivots33'arethe'pro 1 jections 3 9 jand 40 oneleading forward, the other leading back. *Pivotally connecting theme;projections 39 and 40 is the rod 41 e pivoted'at42 and 43, which vcausesthe leaves to, work in unison. Also pivoted to the pro:

jection40 at 42'is the rod 44, Fig. 8, the

opposite endof s'aid rod 44 being pivoted to the lever 2 at45. The lever2 is pivoted to' the-p'rinting chamber at 46, and slides" under theguard 47' as far as the shoulder 48.

The "lever 2" d'erives' its power from the 'spring bO, connected betweenthe levers 2 and 4"at 111 and 112. The lever 4 derives its-power fromthe spring 5 which is attached to the bottom of the printing cham-"beiatf 51"and to the lever 4' at 110. The

lever 4 is pivoted to the bottom of the print- V ingchainber at 52, andat its opposite end 7 hastheshoulder 53 for the-engagement of the lever7, The lever 4 also has pivoted to 5 :54; the leverl for transmittingpower was leverfli The lever 1 is bent upward at 55 and has the slot 56"through which the pin 57 projects, for keeping the lever 1 in position.Lever 1 also has the shoulder 58 for engaging the lever 2 as shown inFig. 5. Fastened to the bottom of the printing chamber is the block 59,which raises the lever 1 when sliding over block 59 at the time theleaves are wide open, disengaging the lever 2 from the lug 58 andallowing lever 2 to return to its normal position, closing the leaves.

Lever 7 is pivoted at 60 and has the shoulder 61 for engaging theshoulder 53 on lever 4:, and has the rod 25 (Fig. 1) pivoted at 62. Thespring 63 returns the lever 7 to its normal position when the platen 6.is opened. The time lever 12 is pivoted at 64:. The spring 65 normallykeeps the lever 12in a position so the end 66 engages the lever 2 uponclosing. The bar 67 has the slots 68 through which the pins 69 projectfor keeping bar 67 in proper place. At the end of bar 67 are theshoulders 70 and 71. The bar 8 has the shoulder 72 and the button 7 3and the slot 7 4 through which the pin 75 passes the spring 109 normallykeeping the button and bar in a forward position. Under the bar 8 is thebar 9 having thereon the indicator 10 and the slot 76 through whichpasses the pin 77. The bar 9 engages the end of lever 96. Lever 96 ispivoted at 79 on the axis of the gear wheel 80, and has the arm 78, towhich is pivoted, at its outer end the rod 81. The pawl 82 is alsopivoted to the arm 78 at 83, the spring 8% keeping the pawl inengagement with the teeth of the gear wheel 80. The rod 81 is pivotedinto the lever 85 at 86. The lever85 is pivoted at 87 and has the arm88, which engages the lever 2 in automatic short time exposures. The arm88 has the part 89 parallelwith the path of lever 2 so as to offer noresistance to the closing of the leaves after the lever 2 from the lug58, has passed the point 90. The spring 91, attached at 92 draws thelever 85 backward for short automatic time exposures, thereby offeringresistance to the closing of the leaves. The timer consisting of thegear wheels 80, 94, 98 and 97 and the fan 95 and the case 93.

The action is as follows: A negative is placed in the negative carrier16 and centered according to the part to be printed under the platen 6.The negative carrier 16 is placed in position and the springs 18 clippedunder the clips 17 and the rods 22 and 29 connected. A sheet of photosensitive material is placed into the opening in the negative carrier 16between the platen and the negative, the platen 6 is pushed shut by thespring 19 which looks under the'lock 20. Simultaneously, the lever 21through the rod 22, the lever 23 and the rod 25 draws the lever 7forward. The lever 7 engages the shoulder 53 of the lever 4, drawing thelever 4 forward with the lever 1, and draws the springs 5 and 50 storingpower in the springs 5 and 50. The shoulder 58 on the leverl engages thelever 2, the shoulder 61 on the lever 7 passes the shoulder 53 on thelever 4, thereby releasing the lever The lever 30 and the lock 20thereby releasing the lock 20 onthe spring 19. The platen 6 beingreleased swings back allowing the lever 7 to return to its normalposition as shown in Fig. 4. In making time exposures the indicator 10is set to the T on the scale 11 which moves the bar 9 to the point shownin Fig. 8 thereby holding the arm 88 out of engagement with the lever 2through the levers 96 and 78. The lever 12 engages the lever 2 on itsreturn holding the lever 2 in the position shown in Fig. 8 until thebutton 73 is pushed inward, which through the bar 67 moves the lever 12outof engagement with the lever 2, allowing the lever 2 to return to itsnormal position, closing the leaves. In instantaneous exposures, theindicator 10 is set to the I on the scale 11, which moves and holds thelever 12 out of engagement with the lever 2 through the bar 67 at thesame time not allowing the arm 88 to come into engagement with the lever2. In slow instantaneous or short automatic time exposures the indicatoris set to the time shown on the scale 11. The lever 2 swings to theposition shown in Fig. 8 the spring 91 throws the arm 88 into engagementwith the lever 2, the arm 96 is swung back as far as the bar 9 willpermit it to go, the pawl 82 on lever 78 engages the teeth of the gearwheel 80, the lever 2 moves the lever arm 88 thereby pulling the gearwheel 80 forward and propelling the fan 95 through the gear train 8O,94, 98, 97. As soon as the lever 2 has reached the point 90, the-leverarm 88 offers no more resistance allowing the lever 2 to close theleaves instantly.

I claim; A

1. In an automatic photographic printing machine, a printing chamber, anegative carrier, means for admitting either artificial or daylight tosaid negative carrier, means for closing out said light from saidnegative carrier, said means consisting of leaves or segments which arenormally closed in a position back of said negative carrier, means foropening and closing said leaves or segments, means for holding saidleaves or segments in an open position for a predeterloo ream

lllll ed a f plateri "means fer] transmitting power tdmechanisnr foroperating said, printing machine through fth'e closingfo'f saidplaten,means for automatically locking said platen during an exposure,;meansfor automatically unlocking said locking means at the completionof an exposure, a tlmer for regulating-the duration of exposure, and"means for automaticallyresetting, said printmg machine tor the nextexposure.

In an automatic photographic printing machine, incombinatioma lightchambena.

negat ve carrier clamping means onsaid M negative carrier for immovablyholding a ,mally holding'said platen in an open position, means 1ncombination with said platen for transmitting power to mechanism foroperating said printing machine, leaves or segments for normally closingcommunication of lightto said negative carrier, means for automaticallyopening and closing'said leaves or segments, means for holding saidleaves or segments in an open position for a predetermined period, andmeans for automatically unlocking said platen at the V completion of anexposure, means for automatically resetting said mechanism for the nextexposure, and a timer consisting of a multiplicity of gear wheels forregulating the duration of exposure.

' 3. In an automatic photographic printing machine, a light chamber, anegative carrier, spring members for holding said negative carrier inposition and immovably holdinga negative in said negative carrier, aplaten, means for normally holding said platen in an open position,means for automatically holding said platen in a closed po sition duringan exposure, means for automatically releasing said holding means at thecompletion of an exposure, means for closing out light from saidnegativecar rier, said means consisting of leaves or seg-' ments back ofsaid negative carrier, means for automatically operating said printingmachine by the transmission of power through the closing ofthe platen,by springs or other means, whereby all other operations oflthe printingmachine are carried out automatically, said mechanism beingautomatically released at the instant the platen is entirely closed,simultaneously automatically locking said platen in a closed positionand opening the leaves or segments, means for holding said leaves orsegments in an open position for time exposures,

7 means for releasing said mechanism, means for holding said leaves orsegments open for a predetermined time, means forregulating the durationof exposure, and means for closing said; leaves or segments, and, meansfor automat cally resetting the mecham forthe next exposure. a

v 4. In an automatic photographic printing.

machine, in combination, printing chamber, anegative carrier, a.platen',.means for.

normally holding saidplaten inan openpoa sition, means for.automatically locking said.

plateninaclosed position, means for transmitt ng power to mechanism foroperating the pr'inting machinewhereby all'operations of id P ms m hin aa n t o automatically, leaves or segments "normally closing out lightfrom said negative carrier, means for automatically opening said leavesorsegments, means for automatically holding said leaves or segments inan open position for a predetermined time, means for holding said leavesor segments open for long time exposures, means for releasing saidholding means, means for automatically closing said leaves or segments,means for moving said holding means out of engage ment with saidmechanism for instantaneous exposures, means for regulating the durationof exposure, means for automatically unlocking the platen, allowing saidplaten to return to an open position at the completion of an exposure,simultaneously automatically resetting said mechanism for the nextexposure. V

5. In an automatic photographicprinting machine, a printing chamber, anexposure opening, leaves or segments for opening and closing saidexposure opening a negative carrier, a platen, locking and unlockingmeans for said platen, a spring carried by saidplaten for normallykeeping said platen in an open position a lever carried by said platen,whereby the act of closing said platen transmits power to a mechanismfor opening and closing said leaves and operating a timing device, atiming device consisting of a multiplicity of gear wheels connected to afan arrangement, a lever earned by said timer, a pawl on said lever forengaging the teeth of the main gear wheel, means for controlling themovement of said lever in one direction, movement of the lever in theopposite direction being performed by the mechanism for opening andclosing the leaves'or segments, whereby the act of closingsa'id leavesor segments is retarded for a determined period, means for putting outof engagement with said mechanism said timer, for instantaneousexposures and time exposures, automatic means for locking said leaves orsegments in an open position for time exposures, means for releasingsaid mechanism whereby the mechanism closes said leaves or segments,means for regulating the duration of exposure, means for unlocking saidplaten whereby said platen returns to an open position, in turnresetting said mechanism for the next exposure.

6. In a photographic printing machine, a printing chamber, an exposureopening, leaves or segments for opening and closing said exposureopening, mechanism for opening and closing said leaves or segments, atiming device for governing the operation of said mechanism whereby saidleaves or segments can be regulated for instantaneous slow instantaneousand time exposures of different duration, a negative carrier, a platen,means for locking said platen in a closed position, means for unlockingsaid locking means upon the completion of an exposure, a spring forthrowing said platen open when said lock is released, a lever carried bysaid platen for transmitting power to the mechanism for operating saidprinting machine.

PHIL A. FRIEDELL. Witnesses: v

ANDREW LIND, H. M. HASTINGS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

